Cnidaria Hydra‚ Jellyfish‚ Coral‚ & Sea Anemones Phylum Cnidaria- Examples Sea Anemones and Corals - Anthozoa Hydra- Hydrozoa Jellyfish - Scyphozoa Ctenophores - non stinging Cnidarians; Comb Jelly Anatomy A. Polymorphism- Cnidarians have more than one body form: 1.Polyp 2. Medusa Polyp Form Tube with tentacles around the mouth Sessile Medusa Form Umbrella Shape Tentacles around mouth Motile‚ Free-swimming Tentacles Have nematocysts (stinging cells) coiled thread discharges
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References: Blue-ringed octopus. (n.d.). Marine Parks WA. Retrieved May 26‚ 2013‚ from http://www.marineparks.wa.gov.au/fun-facts/94-blue-ringed-octopus.html Dickerson‚ N. (n.d.). Jellyfish Behavior. Jellyfish - Jellyfish Facts. Retrieved May 27‚ 2013‚ from http://www.jellyfishfacts.net/jellyfish-behavior.html Prairie Dog Coalition - Black Tailed Prairie Dog. (n.d.). Prairie Dog Coalition - for the life of the prairie. Retrieved May 26‚ 2013‚ from http://www.prairiedogcoalition.org/pd-black-tailed-prairie-dog
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Plastic bags also cause a serious danger to birds and sea creatures that often mistake them for food. A large amount of them die each year after swallowing or choking on discarded plastic bags. To sea turtles a floating plastic bag looks like a jellyfish. The small hard pieces of plastic from which plastic products are made can look like fish eggs to seabirds. Drifting nets entangle birds and end up making it hard for them to move or even eat.Plastic bags cause bad damage to our see life. Plastic
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environment. Life under the sea is difficult making the adaptations of ocean dwellers vital to their continued existence. Invertebrates like squid‚ jellyfish‚ or crabs use their unique adaptations that provide protection‚ a food source‚ or advantageous physical structures to thrive in their ecosystem. For instance‚ there is a particularly large jellyfish found at about -1‚000 meters that is fluorescent. This fluorescence can be used as a form of protection
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without water at a time since she began her journey. A third controversy concerning Nyad’s jellyfish suit could have given her an unfair advantage. The suit kept Diana Nyad from being stung by jellyfish. This suit was needed to keep Nyad from being severely injured by the deadly sea creatures; she had attempted the swim a few times before this successful one‚ but always she had to stop due to the jellyfish which gave her terrible stings and burns. Such controversies about Diana Nyad’s swim have
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is really a testament to the diversity of life that lurks beneath the waves. First off‚ the comb jelly is not your typical jellyfish‚ as in fact‚ they are not one at all! Their name may suggest a relation‚ which is partially true as they are very distant relatives‚ but comb jellies are completely harmless to humans‚ and both belong to an entirely different phyla‚ jellyfish being Cnidaria and comb jellies being Ctenophora. While both species are exceedingly ancient‚ having roamed the seas for over
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IV. Index 1) Comprehensive Description of Class Hydrozoa 2) Morphological and Ultrastructural analysis of Turritopsis nutricula during life cycle reversal. + PDF 3) Turritopsis nutricula + PDF 4) Other articles about the immortal jellyfish (3 articles) I. Introduction Everyone in this world enters and leaves. Each one has the ability to make choices and decisions‚ to be happy and sad‚ and to live and die. In other words‚ we are living in a dynamic world. It has
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Animal Phyla Lab Adapted from “Phylum Lab” produced by the National Aquarium in Baltimore The diversity of animal life on Earth is astounding. Each animal has a unique body plan which allows it to survive and adapt to its given surroundings. With such an abundance of species‚ classifying animals into different categories is necessary. At first the diversity of animals can be overwhelming‚ but after further research and observation‚ many likenesses appear. These similarities become the basis for
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happens when a cell transforms and expresses a gene it once did not have‚ which is basically the gene that makes it glow fluorescent green. This particular glowing gene comes from the jellyfish Aequorea victoria. This glowing gene is taken from the jellyfish and the E. coli takes in the GFP protein from the jellyfish DNA‚ transforms to accept the glowing gene‚ and will then provide its own fluorescent green glow under UV light when it begins to express the gene [1]. People may wonder why this type
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Planarians are organisms that live in freshwater. Planarians are part of the metazoan phylum. Animals in the metazoan like jellyfish have the ability to regenerate (Raymond 511-512). Planarians are closely related to animals like jellyfish and starfish. These animals shared the same special ability to regenerate; starfish are able to regenerate their arm when it is cut off. Jellyfish are able to regenerate their stinger when cut off (Li et al.‚). Planarians have the ability to regenerate. Planarians are
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